Auxiliary fuel supply for gas engines



New. l1 1924.

c. A.-scHM|D AUXILIARY FUEL SUPPLY FOR GAS ENGINES Filed Oct. 9, 1923 2 Sheets-Sheet l Cf A? 196%??? d c. A. scHMlD AUXILIARY FUEL SUPPLY FOR GAS ENGINES Filed Oct. 9. 1923 2 Sheets-Sheet 2 atroz um;

'sientes Nov. il, 1924.

UNITED STATES Parav omer..

A CARLOS ALBERTO SCHMID, F NEW ORLEANS, LOUISIANA. y

AUXILIARY FUEL SUPPLY ron` GasV ENGrNEs.

Application filed october a, 192s. serial No.. 667,515.

Toall whom t may concern f Be it known that I, CARLOS ALBERTO SCHMID, a citizen of the United States, residing at New Oorleans, in the parish of Orleans and lState of Louisiana, have ini vented certain new and vuseful Improveby automobiles for use in the event that the main supply becomes exhausted, and

has more particular reference to a tank of v relatively small capacity that is adapted to be associated with the usual vacuum tank of the fuel supply system on automobiles using a vacuum tank, and to be installed at a certain convenient place between the carburetor and the main gasoline tank on cars not using a vacuum tank whereby the gasoline in this auxiliary fuel supply' tank may be employed when the vacuum tank or main fuel 4tank has been completely exhausted of its fuel.

The main object of this invention is to provide an auxlliary fuel supply for gasoline engines inthe form of a tank that is to be4 associated directly with the outlet of the usual vacuum tank of the 'engine fuel supply system on automobiles using a vacuum tank, and to be installed at a certain convenient place between ,the carburetor and the main gasoline tank on cars not using a vacuuml tank whereby when the main gasolinesupply has become exhausted, the outlet of the auxiliary tank may be opened for allowing the gasoline therein to pass directly to the carburetor for consequently allowing the machine to be driven a sutilcient distance so that the fuel supply may be replenished and the motor continued to operate without the usual necessity of havingto manually lill the vacuum tank which is in some instances, a relatively diiicult matter to accomplis A. still further' object of this invention is to provide such anauxiliary tank that is extremely simple of construction and one that may bevmanufactured and marketed at relatively small cost and installed by those unskilled in the art. With the above and other objects in view, as the nature of the invention will be better understood, the same comprises the novel form, combination and arrangement of lparts hereinafter more fully described,

shown in the accompanying drawings and claimed.

In the drawings wherein like reference characters 'indicate corresponding parts throughout the several views,

Figure v1 is an elevational view of my auxiliary fuel supply when associated with a vacuum tank,

Figure 2 is an enlarged vertical sectional view of an auxiliary fuel supply tank constructed in accordance with this invention, and v Figures 3 and 4 are enlarged detail cross sectional views takeir substantially upon the lines-S and 4-4 respectively of Figure l.

Now having particular referente to the drawings, 5 indicates any conventional type of vacuum tank or main fuel supply tank that is employed in the usual fuel supply, system for gasoline engines and that is equipped at its lowerv side with the usual externally screw-threaded fuel outlet nipple 6. The usual gasoline supply line between this vacuum tank or supply and the engine carburetor is designated 7 which is equipped at one endwith a well known coupling 8 whereby this pipe 7 is operativelyconneeted to said externally screw threaded outlet nip-v ple 6 of the tank 5.

In theinstallation ofv my novel auxiliary fuel tank this-supply line 7 is disconnectedk from said nipple and my auxiliary tank connected at one end to the tank nipple and at its opposite end tosaid pipe 7. Y

`My inventionper se embodies the provi; sion -of a cylindrical tank 9 of substantially one gallon capacity and that is vopen at its upper en d and formed at such end with an inwardly extending flange 10 that is formed with spaced screw-threaded openings and upon which its positioned -a closure plate 11 that is also formed at its marginal edge with openings for alinement with the before mentioned screw-threaded openings in said flange 10 whereby this cover may be securely fastened to the tank through the medium of set-screws l2; it being noted from a consideration of Figures l and 2, that a packing ring 13 is interposed between the cover plate and the upper end of said tank forl mentioned externally screw-threaded outlet nipple 6 of the vacuum or supply tank 5. Pendant from this cover plate 11 and co1nmunicating with said inlet nipple 14 is a relatively elongated flow pipe 15 that extends downwardly within said cylindrical The flow pipe 15 1s equipped at a pointl -directly above the bottom wall of said cylindrical tank 9 with an inlet 19 that is preferably in the form of an elbow pipe the upper end thereof being so formed as to provide a valve seat complementary Iwith whichis a valve that is pivotally carried by one end of a rock lever 21 that is in turn pivoted intermediate its end as at 22 toan upstanding bracket 23 formed upon, Said elbow pipe 19.` The connection between the rock lever 21 and the stem 20 is preferably as shown,` that is a sliding connection for allowing movement of the float while the car is in motion without' affecting the valve 20 and permitting the fluid to escape.l The opposite end of this rock lever 21 is pivoted tothe lower end of a rod 24 that carries adjacent its upper end a oat 25 the extreme upper end of this rod projecting through an opening 26 in the top cover plate 11 and pivoted to one arm of a bell crank 27. This bell crank is pivoted at 28 to a bracket 29 formed upon said cover plate 11 and pivotally secured to the opposite arm thereof is 'a pusln' rod `designated 30 which extends preferably through an opening in the instrument board of the motor vehicle that is equipped with an operating knob.

In view of the above description it will at `once be apparent that the normal position of the valve 20 is open due tothe weight of the float 25, butafter the device has been installed and the gasoline is allowedl to flow ,therethrough and after the carburetor has become full, the gasoline will back up into the tank 9 until the float 25 rises to cause closing of said valve 20. It will be manifest that should the main gasoline supply become exhausted .the push rod may be controlled for consequently forcing downwardlyupon the rod 24 for thereby opening the valve 2O and allowing the gasoline from the tank 9 to flow into the carburetor whereby the motor may be operated until the fuel supply is replenished.

The specific operation together with the numerous advantages of ank auxiliary fuel supply for gas engines of the present type will be at once appreciated by those skilled in the art, and even though I have herein set forth the most practical embodiment of the invent-ion with which I am at the present time familiar, it is nevertheless to be understood ythat minor changes may be made therein without departing from the spirit and scope of the appended claim.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is A reserve fuel supply. for internal com-J bustion engmes comprising a tank having arropen upper end and a central opening in the bottom, a cover section for the tank having a cover plate removably secured to the upper open end and formed with an upstanding inlet nipple for adjustment to the outlet nipple-on the bottomof a main supply. tank, said cover plate being further formed with a depending flow pipe projecting through the opening in the bottom-of the tank, means for formingv a fluid tight joint between the lower ends of the flow pipe and the tank; the' fuel supply line being adapted for connection to the lower end of the iow pipe, and a valve control passing between the interior of the tank and the flow pipe adjacent the bottom of the tank.

In testimony whereof I alx `my signature. 

